Piping spool prefabrication for thermal power plants
Pipelines used in thermal power engineering are intended for the transportation of hot water and steam.
Details
The requirements for pipelines in the thermal energy sector are stricter because they are designed for the transportation of medium with even higher parameters compared to Nuclear PP pipelines. To manufacture pipes for thermal generation purposes, we use both traditional and modern specialized heat-resistant types of steel.
We manufacture pipelines for TPPs according to domestic and international standards and using seamless and welded pipes, sheet steel, and steel forgings from carbon, low-alloy, and stainless steel grades as per EN, DIN, ASTM, and ASME standards.
The individual components
Straight pipes with welded ends
Bent pipes with the R/Do ratio of > 3 (R — bending radius, mm, Do — pipe outer diameter, mm)
Sharply bent pipes with the R/Do ratio of 1.4–3
Elbows without straight sections with ratio the R/Do of 1–2
Branches (tees) and forks stamped (turned), forged, welded (equal and transitional), with an elongated neck
Stamped, welded, forged, and turned reducers
Stamped, turned, flanged, flat, and elliptical plugs
Collar and flat flanges
Welded-in orifice devices and flow meters
Nozzles, bosses, plugs, etc.
Geometrical conditions
1,220 mm
max. outside diameter
120 mm
max wall thickness
4,500 t
max capacity per annum
Manufacturing steps
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Engineering
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Prefabricating straight sections
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Inductive bendings
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Cold bendings
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Heat treatment
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Welding
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Non-destructive testing (VT, MT, PT, RT, and UT) and destructive testing (an in-house laboratory)
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Documentation
